Awesome Brightness: Each tail light has 23 PCS LED chips to output two levels of ultra bright red light and one level of amber light. Low brightness red light for running light, high brightness red light for stop brake lights, and amber light for left right turn signals light. Improving visibility and ensuring you a safer night | Quick installation: First, successively install the rubber grommet, oval taillight with 3 wires. Then align the bracket hole with the hole on vehicle, screw goes through the hole, and then tighten the nut. Last connect the 3 wires to the corresponding wires on vehicles | Upgraded Unique Design: Nilight's tail light has unique “ears” on its two sides, upgrade notches on the inside of grommet. These help the light and grommet fit perfectly and firmly on mounting bracket, and the 3 wires attaches tightly onto the light. Shake proof, there will be no worries of loosing light or wires | Ready For The Weather: The oval taillight is highly silicone sealed, IP67 waterproof rating, always be ready for different kinds of weather attack. The mounting bracket is a durable metal coated with high-quality black powder. It is not easy to lose paint and rust | Extensive Application: Universal fit for DC 12V system, function as stop brake light, left right turn signals light and tail light for all kinds of trucks, trailers, tractors, Boat, luggage rack, special vehicle, etc. Just make sure the hole size before you purchase